| Olszyny-Kolonia | |
| Settlement Type: | Village |
| Total Type: | |
| Coordinates: | 53.1986°N 22.2244°W |
| Pushpin Map: | Poland |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Podlaskie |
| Subdivision Type2: | County |
| Subdivision Name2: | Łomża |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Piątnica |
Olszyny-Kolonia is a village in the administrative district of Gmina Piątnica, within Łomża County, Podlaskie Voivodeship, in northeast Poland.[1]